[evlatests] P-band

[Rick Perley]

    I just checked these data.   Ken's summary is spot-on.  Antennas 2, 
8, 11, 13, 15, 17, 19, 21, 22, 23, 25, 26 and 28 all fringe, more or less. 
    Antennas 17, 21 and 22  have their polarizations reversed.

    All the above-named antennas give decent bandpasses, save one.  
Antenna 21's bandpass is just plain wrong -- it appears inverted, with 
the central areas lower than the edges!  Furthermore, I cannot get CALIB 
to find a solution for this antenna, even through the fringe amplitudes 
appear to be fine, and the phases steady.  I have no credible explanation. 

    Antenna 15 is weak by about a factor of 100 (in power) in IFs A and 
B (RCP)
    Antenna 13 is low by about a factor of 10 in IF C.
    Antenna 28's fringes are barely visible in IF B, but are o.k. in the 
others. 

   

Ken Sowinski wrote:
> On Thu, 17 Jun 2010, John McClendon wrote:
>
>> Ken, Would you please run the array at P-Band on a good source and 
>> let me know which antennas are not fringing or are crossed 
>> polarized.  There is no big rush on this, I'm just trying to get as 
>> many of them running as I can. Thanks, John Mc.
>
> Rick,
>
> I just started Psysstart.  It will run until Joe McM has something
> more useful to do.
>
> Antennas ea02 ea08 ea11 ea13 ea15 ea17 ea19 ea21 ea22 ea23 ea25 ea26 ea28
> all seem to work.  Of those, ea17, ea21 and ea22 are weak and may
> have polarizations swapped.
>
> Ken